week1: two-sum

Author: reeseo3o

two-sum/reeseo3o.js

@@ -0,0 +1,13 @@
+const twoSum = (nums, target) => {
+  const map = {};
+
+  for (let i = 0; i < nums.length; i++) {
+    const complement = target - nums[i];
+
+    if (complement in map) {
+      return [map[complement], i];
+    }
+
+    map[nums[i]] = i;
+  }
+};